GOST 33259 Stainless Carbon Steel Blind Flange

Product Introduction

Specifications

NPS 1/2″-48″ DN15-DN1200

Pressure

PN16, PN25, PN40, PN63, PN100

Material

Carbon Steel: A105 Q235B S235JR

Stainless Steel: SS304 SS316 SS321

Blind flange, also known as blind flange cover, is a type of flange used to close or close the end of a pipeline system. The design is basically a solid disk without a middle hole.

Usually used for the end or temporary sealing of pipeline systems to prevent fluid or gas from passing through the system.

Its main function is to block the pipeline system and prevent fluid or gas leakage. This type of flange is usually not used for fluid flow, but rather for closing one end of the pipeline system

Connection method:

Blind flange is usually connected to the flange of the pipeline system, which can be connected by bolts or welding. This ensures the firmness of the flange and the sealing of the system.

Application:

Blind flanges are widely used in industrial fields such as chemical, petroleum, natural gas, and power. They are often used during the maintenance, repair, or testing phase of pipeline systems to prevent unwanted substances from entering or exiting the pipeline system.

Advantages and disadvantages

Advantages
1. Sealing performance:

Blind flange can effectively seal one end of the pipeline system to prevent fluid or gas leakage. This makes it easy to shut down the system when maintaining, repairing, or testing pipeline systems.

2. Easy to install and disassemble:

Blind flanges are relatively easy to install and disassemble compared to other flange types. This makes it more convenient when the pipeline system needs to be shut down or reconfigured.

3. Reliability:

Blind flanges can provide reliable sealing performance when installed and used correctly, ensuring the stable operation of pipeline systems.

4. Widely used:

Due to its simple and practical design, blind flanges are widely used in various industries, including chemical, petroleum, natural gas, power, etc.

Disadvantages
1. Not suitable for routine operations:

As its main design is to temporarily seal or close one end of the pipeline system, blind flanges are usually not suitable for routine operations such as frequent switching or adjustment.

2. Possible system shutdown:

When using blind flanges for pipeline maintenance or testing, the system may shut down due to the closure of the pipeline system. This may not be suitable for some production processes that require continuous operation.

3. Design and selection need to be cautious:

The design and selection of blind flanges need to be carefully considered to ensure that they can meet the specific application requirements. Wrong choices may lead to leaks or other security issues.

4. Additional equipment may be required:

When using blind flanges, additional equipment such as sealing gaskets, bolts, etc. may be required to ensure the integrity and sealing of the system.

1.Shrink bag–> 2.Small Box–> 3.Carton–> 4.Strong Plywood Case

One of our storage

Loading

Packing & Shipment

1.Professional manufactory.
2.Trial orders are acceptable.
3.Flexible and convenient logistic service.
4.Competitive price.
5.100% testing,ensuring the mechanical properties
6.Professional testing.

1.We can guarantee the best material according to related quotation.
2.Testing is performed on each fitting before delivery.
3.All packages are adapt for shipment .
4. Material chemical composition is conformed with international standard and environment standard.

A) How can I get more details about your products?
You can send an email to our email address. We will provide catalogue and pictures of our products for your reference.We can also supply pipe fittings, bolt and nut, gaskets etc. We aim to be your piping system solution provider. 

B) How can I get some samples?   
If you need, we will offer you samples for free, but new customers are expected to pay express charge. 

C) Do you provide customized parts? 
Yes, you can give us drawings and we will manufacture accordingly. 

D) To which country have you supplied your products?
We have supplied to Thailand, China Taiwan, Vietnam, India, South Africa, Sudan, Peru , Brazil, Trinidad and Tobago, Kuwait, Qatar, Sri Lanka, Pakistan, Romania, France, Spain, Germany, Belgium, Ukraine etc. (Figures here only include our customers in latest 5 years.). 

E) I can’t see the goods or touch the goods, how can I deal with the risk involved?  
Our quality management system conforms to the requirement of ISO 9001:2015 verified by DNV. We are absolutely worth your trust. We can accept trial order to enhance mutual trust.